Cup lid



FIG. 1 is a top plan view of a cup lid showing my new design;

FIG. 2 is a side elevational view;

FIG. 3 is a rear elevational view;

FIG. 4 is a front elevational view; and

FIG. 5 is a perspective view with a tear away section removed.

The ornamental design for a cup lid, as shown and described.